bug#30248: Can't build Emacs pretest 26.0.91

[Eli Zaretskii]

> From: Andreas Röhler <andreas.roehler@easy-emacs.de>
> Date: Sat, 27 Jan 2018 16:36:38 +0100
> Cc: Robert Pluim <rpluim@gmail.com>, Nicolas Petton <nicolas@petton.fr>,
>       Noam Postavsky <npostavs@users.sourceforge.net>
> 
> On 25.01.2018 15:24, Noam Postavsky wrote:
> > Andreas Röhler <andreas.roehler@online.de> writes:
> > 
> >> /usr/lib/gcc/i586-linux-gnu/4.9/../../../i386-linux-gnu/libgdk-3.so:
> >> undefined reference to `cairo_surface_set_device_scale'
> >> /usr/lib/gcc/i586-linux-gnu/4.9/../../../i386-linux-gnu/libgtk-3.so:
> >> undefined reference to `cairo_surface_get_device_scale'
> > 
> > Some suggestions in [1] that having .../anaconda/lib in LIBRARY_PATH
> > might cause this.  [2] is inconclusive, but also mentions anaconda.  So
> > does [3].
> > 
> > [1]: 
> > https://askubuntu.com/questions/796662/gedit-error-for-non-sudo-undefined-symbol-cairo-surface-set-device-scale-und
> > [2]: https://github.com/Wilfred/remacs/issues/118
> > [3]: http://lists.gnu.org/archive/html/emacs-devel/2017-03/msg00543.html
> > 
> > 
> > 
> Having anaconda removed from PATH it builds nicely.

etc/PROBLEMS stuff, perhaps?